Answer:
3
Step-by-step explanation:
7 plus three is 10, adding -10 to that equals zero.
45° + 2k + k = 180°
=> 45 + 3k = 180
=> 3k = 180 – 45
=> k = 135/3
=> k = 45
other two angles :-
2k = 2×45 = 90°
k = 45°
25 percent=$40.00
100-25=75 percent
75/100×40.00
300/10
$30
So the original price is 40+30=$70
